I cut the hair of four Shih Tzu and then a border collie.
Last week, it finally failed to cut Caitlin Elizabeth's fine hair. Half way through the cut, it would no longer work. I cleaned the assembly and the clipper's compartments.
I ordered a replacement blade #10 UltraEdge detachable.
The clipper now works like a charm! In Summer, I keep both the Shih Tzu and Border Collie shaved with a very short cut. The trim lasts about two months.
Andis 64071 UltraEdge Detachable Blade, Size 10
Andis CeramicEdge Blade 10 (64315)